How to Change the Coolant in a 2016 Suzuki DR200S

Shop parts for a 2016 Suzuki DR200S Dirt Bike.

The 2016 Suzuki DR200S is a popular dual-sport motorcycle, known for its reliability and versatility. Like any liquid-cooled engine, regular coolant changes are vital for long-term performance and protecting the engine from overheating or internal corrosion. This guide will walk you through a step-by-step process that is tailored to this particular model and highlight tips all DR200S owners should know.

What You Need

  • Fresh, motorcycle-specific coolant (do not use automotive coolant)
  • Distilled water (if mixing coolant concentrate)
  • A drain pan
  • 8mm or 10mm socket or wrench (for drain bolt)
  • Funnel
  • Shop rags
  • Replacement sealing washer (recommended for the drain bolt)
  • Gloves and safety glasses

Preparation

  • Ensure the engine is completely cool before starting. The DR200S's compact engine makes the cooling system easy to access, but always work on a cold motor to avoid burns.
  • Put the bike on a stable, level surface – use a stand if available.

Step 1: Remove the Seat & Side Panels

Remove the seat and left side panel to access the radiator cap and overflow reservoir. DR200S panels are secured with bolts and quick-attach fasteners—take care not to lose them.

Step 2: Drain the Old Coolant

  • Place a drain pan under the water pump area (lower left engine side).
  • Remove the radiator cap to relieve any pressure in the system.
  • Locate and remove the coolant drain bolt—usually at the lowest point on the water pump. Allow all coolant to drain completely.
  • Inspect the sealing washer and replace if worn or damaged for a reliable seal.

Step 3: Flush the System (Recommended)

  • Reinstall the drain bolt loosely and fill the radiator with distilled water.
  • Run the engine briefly (about 1-2 minutes) to circulate. Shut it off and let it cool again.
  • Drain out the flushing water. Repeat as needed until the drained water runs clear.

Step 4: Refill with Fresh Coolant

  • With the drain bolt reinstalled (and torqued to spec), pour fresh premixed motorcycle coolant (or mix coolant with distilled water 50/50 if specified) up to the base of the filler neck.
  • Fill the overflow reservoir up to the upper mark.

Step 5: Burp the Radiator

  • Start the engine with the radiator cap off. Let it idle and gently rock the bike side to side to help free any air bubbles trapped in the system.
  • As the coolant level drops, top off as needed until it stays level at the filler neck.
  • Once air bubbles stop appearing, reinstall the radiator cap.

Step 6: Final Checks

  • Run the engine until it reaches full operating temperature. Let it cool completely, then check the levels in both the radiator and the reservoir.
  • Top off both as needed—after the first ride, recheck coolant levels again to ensure the system has purged any remaining air.

2016 DR200S Notes & Best Practices

  • Capacity: The DR200S holds about 1.0L of coolant including the reservoir. Do not overfill.
  • Coolant Type: Only use coolants designed for aluminum motorcycle engines—avoid silicate-heavy or automotive-specific products, as they can damage the water pump seals over time.
  • Frequency: Change the coolant at least every two years, or annually if you operate your DR200S in harsh environments.
  • Disposal: Used coolant is toxic—always dispose of it safely at a recycling facility, never down drains or onto the ground.
  • Inspection: While access is easy thanks to the DR200S's minimal bodywork, always double-check that the radiator cap is secure and hoses are leak-free after any coolant service.

Keeping your DR200S's cooling system fresh is a simple project that protects your investment and lets you ride worry-free no matter the conditions.

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Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.